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1. (4 pts) Which of these graphs represent a one-to-one function? Answer(s): (ne explanation required.) (There may be more than one graph that qualifies) 1
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Answer #1

There must be only one value of x for all y's in the range and one value of y for all x's in the domain.

So,

(A) Yes, It is the graph of one to one function as it satisfies the above condition

(B) Yes, This graph is also one to one function as it also satisfies above consditions.

(C) No, This is not the graph of one to one function as there are two values of y for all x<=1

(D) No, This is also not the graph of one to one function as there are two values of x for y=2 , y=4 ,etc.

So, answer is (A) and (B)

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